XGY   Grimsby Mountain, ON Weather Observed At   43-11  N    79-34  W

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2026-10-13	5:30pm			Max		Min
Weather
Temperature		25.4 °C		27.8 °C	2:18pm	17.8 °C	6:51am
Relative Humidity		65 %		93 %	6:19am	62 %	3:46pm
Dew Point		18.4 °C		20.6 °C	12:43pm	16.1 °C	12:00am
Wind Velocity		182 ° at  4.8 G 11.3 kt		18.3 kt	11:12am
Pressure		29.658 "		29.800 "	12:01am	29.631 "	4:05pm
Rainfall Rate		0.0 mm/h		7.2 mm/h	5:54am
Snow On Ground		0 cm
Brightness / Darkness		25 W/m² /  0.00 m/"²		584 W/m²	11:50am	20.03 m/"²	12:04am
Remarks

Rainfall	Today	2.0 mm	Storm Total	2.0 mm
Snowfall	Today	0.0 cm	Storm Total	0.0 cm

Evapotranspiration

Today

-2.59 mm

Lake Conditions

Water Temperature  16.8 °C

Waves  1½ '

ICE FREE

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Meteor Index	22   Orionids
Aurora Index / Solar	30   Unsettled   + 1 nT	Solar Flux   136  sfu  /   S 0    G 0    R 0   /  MUF   29.1 MHz

Sunrise	7:30am	Sunset	6:38pm
Moonrise	N/A	Moonset	N/A	Moon Phase	Waxing Crescent

Grimsby Mountain Weather Maps
Local	Regional	Area	Synoptic
updated H+09 and every 10m	updated H+19 and H+49	updated H+19

Ontario 6-Hour Meteorological Summary

Canadian 6-Hour Meteorological Summaries

CLIMAT Data
Official	Yesterday					2004	2005	2006	2007	2008	2009	Normals & Records
		2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
		2020	2021	2022	2023	2024	2025	2026

Grimsby Mountain Charts

	Sky Quality (Darkness) Meter courtesy of

              

Wx Map	Sat Pix	IR Sat Pix	Radar	Lightning
	Water	Ice

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  This is a privately operated weather station that is part of the Meteorological Service of Canada's official observing network.
Permission to publish the weather statistics found on this website is not required.
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